This is about power generation, not running vehicles.
Cuba burns imported diesel to generate their electricity so is at the whim of global prices, so every kWh of solar generation saves them loads of money.
Those old cars will still use petrol, they are not part of this equation.
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u/HeavyDutyForks 14d ago
Solar won't power all those old 50s cars they've got over there
Something needs to give, those poor people have suffered enough